Well documented, but Shatner's charisma as the lead is a huge reason people got so involved with the show. Both actors were equally perfect and important..

Shatner certainly had his share of fans, but Nimoy's Spock was so popular, he was the first character to be produced as a model kit during the series' production years--with the subtitle "Star Trek's Most Popular Character" on the box. That says much about perceptions at the time TOS was a first run series.

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